Make more use of generated code in analysis server.

pkg/analysis_server/lib/src/services/refactoring/rename_unit_member.dart

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library services.src.refactoring.rename_unit_member;
 
 import 'dart:async';
 
-import 'package:analysis_server/src/protocol2.dart' show Location;
-import 'package:analysis_server/src/services/correction/change.dart';
+import 'package:analysis_server/src/protocol2.dart' show Location, SourceChange;
 import 'package:analysis_server/src/services/correction/status.dart';
 import 'package:analysis_server/src/services/correction/util.dart';
 import 'package:analysis_server/src/services/refactoring/naming_conventions.dart';
 import 'package:analysis_server/src/services/refactoring/refactoring.dart';
 import 'package:analysis_server/src/services/refactoring/rename.dart';
 import 'package:analysis_server/src/services/search/element_visitors.dart';
 import 'package:analysis_server/src/services/search/search_engine.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/java_core.dart';
 
@@ skipping 46 matching lines @@
     if (element is FunctionTypeAliasElement) {
       result.addStatus(validateFunctionTypeAliasName(newName));
     }
     if (element is ClassElement) {
       result.addStatus(validateClassName(newName));
     }
     return result;
   }
 
   @override
-  Future<Change> createChange() {
-    Change change = new Change(refactoringName);
+  Future<SourceChange> createChange() {
+    SourceChange change = new SourceChange(refactoringName);
     // prepare elements
     List<Element> elements = [];
     if (element is PropertyInducingElement && element.isSynthetic) {
       PropertyInducingElement property = element as PropertyInducingElement;
       PropertyAccessorElement getter = property.getter;
       PropertyAccessorElement setter = property.setter;
       if (getter != null) {
         elements.add(getter);
       }
       if (setter != null) {
@@ skipping 146 matching lines @@
                 getElementKindName(element),
                 getElementKindName(member),
                 getElementQualifiedName(member));
             result.addError(message, new Location.fromMatch(memberReference));
           }
         });
       });
     });
   }
 }